I have the M2P, the Mav pro, the Mav Pro Plat. Love DJI!
However, Since the Goggles RE do NOT yet allow FPV flight
beyond 500 feet or so, I am thinking perhaps to just
purchase the SMART CONTROLLER, which does have
HDMI output; and run the Gog's RE in this manner.
Your Thoughts, anyone?

(And DJI'ers: How about FIXING the Loss of Range issue PLEASE!!!!
Shay, shay.)

Hi, we're very sorry for the inconvenience caused. In regards with DJI Googles RE, it is recommended to mount a 5.8G antenna on the Googles RE. Also, can you please check if there will be any abnormalities in the image transmission using 2.4G and 5.8G  frequency bands? If yes, I'm afraid that you may consider sending it back for repair. Should you have further question, please let us know. Thank you.